--- title: "Coding Classes in Haringey and Tottenham | Modern Age Coders" description: "Live online coding, Python, AI and maths classes for Haringey: Tottenham, Wood Green, Hornsey, Muswell Hill, Crouch End and Highgate. Ages 6 to 67." canonical: https://learn.modernagecoders.com/coding-classes-in-haringey-london source: src/pages/coding-classes-in-haringey-london.html --- > Live online coding, Python, AI and maths classes for Haringey: Tottenham, Wood Green, Hornsey, Muswell Hill, Crouch End and Highgate. Ages 6 to 67. Skip to contentCourse picks for Haringey ## Where Haringey learners start Picture a Year 3 child in Muswell Hill who writes secret notes in code, a Year 9 pupil in Tottenham who wonders how the padlock in the browser works, a Year 13 student in Crouch End thinking about cyber security at university, and a small business owner in Wood Green who wants to understand what keeps customer data safe. Each can start with a free lesson. [![Scratch Coding for Kids course thumbnail](/images/scratch-kids.webp)Ages 6 to 10Scratch Coding for KidsA Scratch secret-message game with a key that shifts letters, and a first idea of why keys matter.See the syllabus](/courses/scratch-programming-complete-course)[![Python and AI for Kids course thumbnail](/images/python-kids.webp)Ages 9 to 12Python and AI for KidsFirst Python with remainders: clock arithmetic, powers that wrap around, and a tiny shared secret.See the syllabus](/courses/python-ai-kids-masterclass)[![Python for Teens course thumbnail](/images/python-teens.webp)Ages 13 to 18Python for TeensPython for Key Stages 3 to 5, including Diffie-Hellman, brute force and baby-step giant-step on this page.See the syllabus](/courses/python-complete-masterclass-teens)[![Data and AI Analytics for Non-Programmers (Excel, Sheets, Power BI) course thumbnail](/images/data-ai-analytics-non-programmers.webp)AdultsData and AI Analytics for Non-Programmers (Excel, Sheets, Power BI)For adults who handle sensitive data and want a clear picture of how encryption keys are agreed and attacked.See the syllabus](/courses/data-and-ai-analytics-for-non-programmers-course) Browse the [course atlas](/course-atlas) for more than one hundred options and use the [coding roadmap](/coding-roadmap) to check prerequisites. The four we are known for ### Python, AI, vibe coding and agentic coding These run underneath everything above. Every one is live and online, placed by ability rather than by age, and the first class is free. [![Vibe Coding for Teens course thumbnail](/images/vibe-coding-teens.webp)Vibe codingAges 13 to 17Vibe Coding for TeensPython, web and AI projects where the learner still owns the thinking.See the syllabus](/courses/vibe-coding-for-teens-python-web-ai-projects-course)[![Python Automation Course course thumbnail](/images/python-college.webp)Python and AICollege and adultPython Automation CourseAutomate the work you already do, then let AI carry part of it.See the syllabus](/courses/python-ai-automation-masterclass-college)[![AI and Machine Learning for Teens course thumbnail](/images/ai-ml-teens.webp)AI and MLAges 14 to 18AI and Machine Learning for TeensTrain a model, read what it learned, and be able to say why it is wrong.See the syllabus](/courses/ai-ml-masterclass-teens)[![Codex & Claude Code course thumbnail](/images/codex-claude-code-adults.webp)Agentic codingProfessionalsCodex & Claude CodeRun AI coding agents on real work without losing control of the codebase.See the syllabus](/courses/codex-and-claude-code-ai-coding-agents-masterclass-for-adults-professionals)Haringey in numbers ## 264,238 residents and six Grade I entries Each figure comes from the organisation named, or from our count of what it publishes. | Fact | Figure | Where it is published | | --- | --- | --- | | Residents on Census day 2021 | 264,238 | ONS table TS001 | | Heritage List entries in the borough | 286, with 6 at Grade I and 21 at Grade II* | Historic England data, counted 25 September 2026 | | Year of the first high-definition television programme at Alexandra Palace | 1936 | Historic England list entry 1268256 | | Line at Wood Green | Piccadilly | TfL open data, checked 25 September 2026 | ### Highpoint The two Highpoint blocks in Highgate are both listed at Grade I, a rare distinction for twentieth-century flats. ### Castle and house Bruce Castle and the tower to its south west are Grade I, as are Cromwell House and its forecourt walls. ### Halls and houses Hornsey Town Hall, Dial House, Percy House and Byron House are among the borough's Grade II* entries. Haringey Council lists libraries at Alexandra Park, Coombes Croft, Highgate, Hornsey, Marcus Garvey, Muswell Hill, Stroud Green and Harringay, and Wood Green, as well as a community and youth music library. The idea ## Agreeing a secret while everyone listens Diffie-Hellman uses clock arithmetic: numbers that wrap round when they reach a chosen prime, just as hours wrap round at twelve. | Step | Alice | Bob | Heard by everyone? | | --- | --- | --- | --- | | Agree a prime and a base | prime 23, base 5 | prime 23, base 5 | Yes | | Pick a private number | 6 | 15 | No | | Send base to that power, wrapped at 23 | 8 | 19 | Yes | | Raise what you received to your private number | 19 to the 6th, wrapped: 2 | 8 to the 15th, wrapped: 2 | No: both now hold 2 | Both end up with the same secret, 2, yet the only numbers that crossed the open channel were 23, 5, 8 and 19. An eavesdropper who wants the secret must work backwards from 8 to Alice's private 6: find the power that turns 5 into 8, wrapping at 23. That backwards problem is called the discrete logarithm, and nobody knows a fast general way to solve it for large numbers. With a prime of 23 it takes seconds by hand; the project is about what happens as the prime grows. Signature project ## Become the eavesdropper: two attacks, timed Learners generate their own primes of increasing size, make keys, and try to recover the private number, first by brute force, then by baby-step giant-step. ### 1. Brute force Try every power in turn until one matches. On average it takes about half as many steps as the size of the prime. ### 2. Baby-step giant-step Store a table of small steps, then take big jumps and look each one up. The work grows only with the square root of the prime, at the price of memory. ### 3. Time it Run each attack several times at each key size, record steps and seconds, and plot them on a log scale. | Prime size | Brute force | Baby-step giant-step | Baby-step giant-step time | | --- | --- | --- | --- | | 12 bits | 1,141 | 76 | under a millisecond | | 20 bits | 392,834 | 1,284 | under a millisecond | | 24 bits | 5,026,774 (0.57 s) | 4,928 | about 1 millisecond | | 32 bits | not run | 81,462 | about 0.04 s | | 40 bits | not run | 1,342,886 | about 0.7 s | | 48 bits | not run | 18,438,231 | about 13 s | Every four extra bits multiply the brute-force work by about sixteen; the same four bits multiply baby-step giant-step by only about four. At 48 bits the clever attack finishes in about 13 seconds on an ordinary computer, while brute force would need months at the speed we measured, an extrapolation we did not run. That is the heart of modern security: keys are chosen so large that even the fastest known attacks would take far longer than anyone could wait. Toy keys like these are for learning only; real systems use far larger numbers and carefully chosen settings. ### Why this cannot be skipped with AI An AI assistant can describe Diffie-Hellman in a paragraph and even write the code. It cannot give a learner the moment of watching their own brute-force attack slow to a crawl as the prime grows, or of beating it with a smarter algorithm and then running out of memory. That experience, how work and memory scale with input size, is the foundation of cryptography and of computer science generally. Responsible learning ## Attacking only your own keys Security is learned by thinking like an attacker, safely and legally. ### Own keys only Learners attack keys they generated themselves, on their own computer. Nothing here touches anyone else's system. ### Toy sizes The largest key in this project is 48 bits, deliberately tiny, so the scaling is visible without any real-world risk. ### Why it matters Understanding the attack is how defenders choose settings well. The project ends with learners explaining why real keys are chosen so much larger. GCSE computer science pupils can follow the toy exchange and the idea of brute force; A-level students can implement both attacks and analyse their growth using the language of algorithm complexity. The list entry is Historic England's; the primes, keys, attacks and timings are our own, run on 25 September 2026, and different computers will give different times. Historic England, the BBC, Haringey Council, TfL and the ONS have no connection with Modern Age Coders. Getting around ## Wood Green, the Piccadilly line and home Haringey has Tube, Overground and main-line stations. Our lessons use none of them. ### Wood Green TfL's open data lists the Piccadilly line at Wood Green. ### Highgate to Tottenham Hale Learners at the western and eastern edges of the borough can share one class from home. ### A shared secret Every class is a small group of five to ten at one stage, where learners get to know the teacher and each other. Haringey in London Haringey is one of London's 32 boroughs. The [London page](/best-coding-class-in-london) lists all of them and the City, linking each as its page is published, including [Enfield](/coding-classes-in-enfield-london) to the north and [Hackney](/coding-classes-in-hackney-london) to the south east. Learning ladder ## From secret notes to discrete logarithms The free lesson shows us a learner's real starting point, and we build from there rather than from their year group. Ages 6 to 10 ### Codes and keys Children make Scratch games that scramble and unscramble messages with a key. [Scratch Coding for Kids](/courses/scratch-programming-complete-course)[Coding for Kids](/courses/kids-coding-blocks-masterclass)Ages 10 to 13 ### Clock arithmetic Python that works with remainders and powers, the building blocks of modern encryption. [Python and AI for Kids](/courses/python-ai-kids-masterclass)[Maths Through Coding](/courses/maths-through-coding)Ages 13 to 18 ### Keys and attacks Diffie-Hellman, brute force and baby-step giant-step with measured scaling, ideal preparation for cyber security or A-level computer science. [Python for Teens](/courses/python-complete-masterclass-teens)[Full Stack Web Development for Teens](/courses/full-stack-web-development-teens-masterclass)Ages 18 to 67 ### Security literacy Adults learn what encryption can and cannot protect, and why key size matters, without needing heavy maths. [Data and AI Analytics for Non-Programmers (Excel, Sheets, Power BI)](/courses/data-and-ai-analytics-for-non-programmers-course)[Python Automation Course](/courses/python-ai-automation-masterclass-college)Coding and AI ## AI can write encryption code. Why should a Haringey teenager understand it? Because security fails in the details, and only understanding catches the details. AI coding tools will produce working encryption code on request. Security problems usually come from somewhere else: settings chosen too small, randomness that is not random, a shortcut that seemed harmless. A learner who has cracked their own 24-bit keys in half a second, and watched a smarter attack do the same to 48-bit keys, understands in their bones why key sizes and careful choices matter. That understanding is exactly what is needed to check machine-written security code. Cryptography also teaches a general skill: reasoning about how cost grows with size. It applies to databases, search engines and AI models themselves. Code can be generated; judging whether it is safe remains human work. Alexandra Palace broadcast to everyone. A Haringey learner who knows how to share a secret in that kind of world has a skill every modern organisation needs. The longer argument is in [why teenagers should still learn to code in 2026](/blog/is-coding-worth-learning-2026). Delivery ## Muswell Hill to Tottenham, lessons live Anywhere in Haringey, a learner is in class the moment the video call connects. ### From home A laptop or desktop with headphones and a broadband connection that can handle video is all that is required. ### Key Stages we use We describe progress in English Key Stages, from the first years of primary school to sixth form, and name GCSE or A level where they apply. All lessons are in English. ### A free start The first lesson is real teaching, finishing with a suggested level and course; we do not ask for any card details. ### Grouped by stage Five to ten learners at one stage share each class, drawn from across the UK and abroad, so a convenient hour is usually on offer. ### Twice a week Classes usually run on two evenings a week, with breaks for holidays and exams agreed in advance. ### UK time Teachers work from India; every time in our messages is UK time. A busy borough, a small class About 264,000 people live in Haringey, and a good class still needs five learners at the same stage free together, so our groups reach well beyond it. Fees ## Fees for Haringey families The first lesson is free; then one monthly fee applies in every part of the borough. First class**USD 0** A complete first lesson with a teacher, free, ending with a recommended level, course and time. Group tuition**USD 100** About eight live lessons a month in a class of five to ten at one stage. Private tuition**USD 150** About eight live lessons a month, one to one. Haringey families pay in US dollars, like every family outside India, and no sterling prices appear on the site. No payment is taken before the free lesson, or before a course and regular time are chosen. The pricing page explains pauses, missed lessons and switching between group and private lessons. Request placement[Check availability](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20want%20a%20free%20coding%20class%20for%20a%20learner%20in%20Haringey.)Reviews ## Google reviews from our families Rated 4.9 across 547 Google reviews. These are real reviews, reproduced as written. ★★★★★ "The one step solution for my son. Modern Age Coders make learning coding so simple that kids love it. The teachers explain complex concepts clearly with practical exercises and interactive content." Ria Mukherjee Parent ★★★★★ "Modern Age Coders has been a game-changer for me. I struggled to grasp IT concepts and coding before joining, but their classes transformed everything. I can now confidently write complex programs with ease." Samriddha Mondal Student ★★★★★ "One of the most wonderful education centres out there. Education is not limited to school syllabus but focuses on skill development." Vansh Agarwal Student ★★★★★ "My child Dhairya is really enjoying the Modern Age Coders classes. This is his first online class and he eagerly looks forward to it. I can already see his improvement, and the teachers are very cooperative." Sonam Oswal Parent of Dhairya ★★★★★ "Modern Age Coders have wonderful teachers who teach in a clear, easy and practical way. The teacher boosts students' confidence and inspires them to learn without hesitation." Sonu Goyal Parent ★★★★★ "I highly recommend this computer coding class! The teachers are incredibly knowledgeable and passionate about coding." Ritu Kedia Parent Free placement class ## Book a free lesson Tell us the learner's age or school year and something they enjoy. Lesson one might be a Scratch secret-message game, some Python clock arithmetic, or the key exchange on this page. ### Contact the team directly WhatsApp or call [+91 91233 66161](tel:+919123366161), or email [contact@modernagecoders.com](mailto:contact@modernagecoders.com). This is Modern Age Coders' actual contact, an Indian number, and not an invented Haringey one. [WhatsApp Modern Age Coders](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20want%20a%20free%20coding%20class%20for%20a%20learner%20in%20Haringey.) Submitted details are used for placement and follow-up. FAQ ## Questions from Haringey About the borough, the cryptography project and how lessons work. ### How many people live in Haringey? The 2021 Census counted 264,238 usual residents in the London Borough of Haringey, in ONS table TS001. ### What happened at Alexandra Palace in 1936? Historic England's list entry records that its BBC studios transmitted the world's first high-definition television programme in 1936, from a lattice mast that gave an aerial height of 460 feet above sea level. ### What is the Diffie-Hellman key exchange? A method for two people to agree a secret number over a public channel. Each keeps a private number, publishes a value computed from it, and combines the other person's published value with their own private number to reach the same secret. ### How long did the attacks take? On our computer, brute force needed about 5 million steps, roughly half a second, for a 24-bit prime. Baby-step giant-step needed about 4,900 steps for the same size and about 13 seconds for a 48-bit prime. ### Is it legal to crack keys? Learners only attack keys they generated themselves, on their own computer, at deliberately tiny sizes. Attacking other people's systems without permission is illegal, and the project never does it. ### When would lessons happen? After the free lesson we suggest a weekly time in a class at the right level with a place available. Teachers are in India; the time is quoted in UK time. ### What does a learner need? A computer with sound and a steady connection. The cryptography project needs only Python; no data downloads. ### Is there a Modern Age Coders centre in Haringey? No. There is no Haringey centre and no premises anywhere in the UK, because every lesson is live online. A learner needs a computer with sound and a stable connection, and our phone number is Indian. ### What do coding classes in Haringey cost? The first lesson is free. After that, a group place costs USD 100 a month for two live lessons a week, about eight a month, with five to ten learners, and one-to-one teaching on the same timetable costs USD 150 a month. Nothing is charged until the course, format and time are agreed. ### How are the groups made up? By level, pace and goals rather than by age or neighbourhood, with five to ten learners at one stage. Where no group fits the learner's week, one-to-one lessons are offered. Explore London ## Elsewhere in London Every borough and the City is on our [London page](/best-coding-class-in-london), linked as its page goes live, including [Barnet](/coding-classes-in-barnet-london) to the west and [Camden](/coding-classes-in-camden-london) to the south. Learners interested in security and computation can continue into our [AI and machine learning classes in London](/ai-and-machine-learning-classes-in-london), and the [UK coding page](/coding-classes-in-united-kingdom) compares school years in the four nations. Book the free class[Message us on WhatsApp](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20want%20a%20free%20coding%20class%20for%20a%20learner%20in%20Haringey.)Free Haringey class[Call +91 91233 66161](tel:+919123366161) ## Keep exploring Modern Age Coders ### Coding classes in nearby places - [Coding Classes in Harrow, London](/coding-classes-in-harrow-london) - [Coding Classes in Hammersmith and Fulham](/coding-classes-in-hammersmith-and-fulham-london) - [Coding Classes in Havering and Romford](/coding-classes-in-havering-london) - [Coding Classes in Hillingdon, Uxbridge, Hayes](/coding-classes-in-hillingdon-london) - [Coding Classes in Greenwich and Woolwich](/coding-classes-in-greenwich-london) - [Coding Classes in Hounslow, Chiswick, Feltham](/coding-classes-in-hounslow-london) - [Coding Classes in Rathmines, Dublin](/coding-classes-in-rathmines-dublin) - [Coding Classes in Rathfarnham, Dublin](/coding-classes-in-rathfarnham-dublin) - [Coding Classes in Merton, Wimbledon, Mitcham](/coding-classes-in-merton-london) - [Coding Classes in Ash Sharqiyah South](/coding-classes-in-ash-sharqiyah-south) ### Free resources - [AI & Machine Learning Tutorial: Basics to Deep Learning](/resources/ai-and-machine-learning) - [Generative AI](/resources/ai-and-machine-learning/generative-ai-and-diffusion-models) - [Java Memory Model and Garbage Collection](/resources/java/java-memory-and-garbage-collection) - [MLOps and Model Deployment](/resources/ai-and-machine-learning/ml-ops-and-model-deployment) ### From the blog - [How to Read and Write Files in Python (The Complete Guide)](/blog/how-to-read-and-write-files-in-python) - [What is Floor Division in Python? 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